Abstract
Research on plant disease control using fluorescent-type ultraviolet light (UV) lamps is well established; however, UV irradiation conditions using light-emitting diode (LED)-based lamps to control plant diseases remain poorly defined. In this study, we used LED UV lamps of different wavelengths (280, 308, and 330 nm) and investigated the UV irradiation conditions that effectively controlled strawberry anthracnose. The most effective strawberry anthracnose control was achieved with 280 nm irradiation, followed by 308 nm irradiation; 330 nm irradiation had negligible efficiency. The effectiveness of UV irradiation in controlling strawberry anthracnose varied among cultivars. In ‘Tochiotome’ and ‘Sagahonoka’, the incidence of strawberry anthracnose was significantly suppressed by UV irradiation at 280 nm. However, in ‘Benihoppe’, the disease was more severe than that in the other cultivars and did not respond to UV irradiation. Strawberry anthracnose suppression was achieved when UV irradiation was applied before pathogen inoculation, but not when administered solely after pathogen inoculation. Under the specified conditions of lamp height and irradiation duration, namely 110 cm/4.5 h, 110 cm/3 h, 90 cm/3 h, and 80 cm/1.5 h, leaf scorch was minimal, and an anthracnose control effect of more than 30% was observed. Irradiation with 280 nm UV for 2, 4, 7, 10, or 14 days before pathogen inoculation for a duration of 7–14 days was effective at controlling anthracnose. When plants were irradiated with 280 nm UV for 7 days and then infected with pathogen 0–16 days later without UV irradiation, the control effect continued for up to 12 days. This study demonstrated that 280 nm UV LED irradiation effectively controls strawberry anthracnose, affecting the aboveground parts, while also demonstrating irradiation conditions that achieve high control without inducing leaf scorch.
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Claims 9
Claim · model-written summary
280 nm was most effective, followed by 308 nm; 330 nm had negligible efficacy.
- Taxon
- Strawberry
_single2.jpg?width=60)
Fragaria ×ananassat0 - Treatment
- 280 nm irradiatione0
- Outcome
- strawberry anthracnose controle0
- Direction
- most effectivee0
- Comparator
- 308 nm irradiatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_single2.jpg?width=500)
Verbatim
t0“Strawberry Anthracnose”
e0“The most effective strawberry anthracnose control was achieved with 280 nm irradiation, followed by 308 nm irradiation; 330 nm irradiation had negligible efficiency.”
Claim · model-written summary
Control effectiveness varied among cultivars.
- Taxon
- StrawberryFragaria ×ananassat0
- Outcome
- effectiveness of UV irradiation in controlling strawberry anthracnosee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Anthracnose”
e0“The effectiveness of UV irradiation in controlling strawberry anthracnose varied among cultivars.”
Claim · model-written summary
At 280 nm, anthracnose incidence was significantly suppressed in Tochiotome.
- Taxon
- StrawberryFragaria ×ananassat0
- Material
- ‘Tochiotome’e0
- Treatment
- UV irradiation at 280 nme0
- Outcome
- incidence of strawberry anthracnosee0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Anthracnose”
e0“In ‘Tochiotome’ and ‘Sagahonoka’, the incidence of strawberry anthracnose was significantly suppressed by UV irradiation at 280 nm.”
Claim · model-written summary
At 280 nm, anthracnose incidence was significantly suppressed in Sagahonoka.
- Taxon
- StrawberryFragaria ×ananassat0
- Material
- ‘Sagahonoka’e0
- Treatment
- UV irradiation at 280 nme0
- Outcome
- incidence of strawberry anthracnosee0
- Direction
- suppressede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Anthracnose”
e0“In ‘Tochiotome’ and ‘Sagahonoka’, the incidence of strawberry anthracnose was significantly suppressed by UV irradiation at 280 nm.”
Claim · model-written summary
Benihoppe disease was more severe than in other cultivars and did not respond to UV.
- Taxon
- StrawberryFragaria ×ananassat0
- Material
- ‘Benihoppe’e0
- Treatment
- UV irradiatione0
- Outcome
- diseasee0
- Direction
- did not responde0
- Comparator
- other cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Anthracnose”
e0“in ‘Benihoppe’, the disease was more severe than that in the other cultivars and did not respond to UV irradiation.”
Claim · model-written summary
UV before pathogen inoculation suppressed anthracnose, unlike UV only after inoculation.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- UV irradiation was applied before pathogen inoculatione0
- Outcome
- anthracnose suppressione0
- Direction
- suppressione0
- Comparator
- solely after pathogen inoculatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Anthracnose”
e0“Strawberry anthracnose suppression was achieved when UV irradiation was applied before pathogen inoculation, but not when administered solely after pathogen inoculation.”
Claim · model-written summary
Specified lamp height and duration combinations produced minimal leaf scorch and over 30% anthracnose control.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- 110 cm/4.5 h, 110 cm/3 h, 90 cm/3 h, and 80 cm/1.5 he0
- Outcome
- anthracnose control effecte0
- Direction
- more thane0
- Value
- more than 30%e0
- Qualifier
- leaf scorch was minimale0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Anthracnose”
e0“Under the specified conditions of lamp height and irradiation duration, namely 110 cm/4.5 h, 110 cm/3 h, 90 cm/3 h, and 80 cm/1.5 h, leaf scorch was minimal, and an anthracnose control effect of more than 30% was observed.”
Claim · model-written summary
280 nm UV applied before inoculation for 7–14 days controlled anthracnose.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- 280 nm UV for 2, 4, 7, 10, or 14 days before pathogen inoculatione0
- Outcome
- controlling anthracnosee0
- Direction
- effectivee0
- Qualifier
- 7–14 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Anthracnose”
e0“Irradiation with 280 nm UV for 2, 4, 7, 10, or 14 days before pathogen inoculation for a duration of 7–14 days was effective at controlling anthracnose.”
Claim · model-written summary
After seven days of 280 nm UV, control persisted up to 12 days without irradiation.
- Taxon
- StrawberryFragaria ×ananassat0
- Treatment
- 280 nm UV for 7 dayse0
- Outcome
- control effecte0
- Direction
- continuede0
- Value
- up to 12 dayse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Strawberry Anthracnose”
e0“When plants were irradiated with 280 nm UV for 7 days and then infected with pathogen 0–16 days later without UV irradiation, the control effect continued for up to 12 days.”
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